Help me out to open the boot menu

  noman.ahmed.583234 11:49 20 Oct 2013
Locked

plzz help me i can't even open the BIOS in my toshiba satellite c855D-S5100 whenever i press F2 it gives me error named (CRICTICALSERVICEFAILED)

  Fruit Bat /\0/\ 17:40 20 Oct 2013

Esc is used to get into BIOS on that machine

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